/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.google.code.motoo.core;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.google.code.motoo.filter.DefaultFilterChain;

/**
 * 
 * @author linfengqi
 * @version 1.0  May 13, 2009
 */
public class DefaultSingleTask implements SingleTask {
	private IoSession session;
	private Object message;
	private IoHandler ioHandler;
	private DefaultFilterChain filterChain;
	public final static Log log = LogFactory.getLog(DefaultSingleTask.class);
	
	public DefaultSingleTask(IoSession session, Object content) {
		this.session = session;
		this.message = content;
		ioHandler = session.getHandler();
		filterChain = (DefaultFilterChain) session.getFilterChain();
	}

	public void run() {
		try {
			filterChain.reuse();
			filterChain.doFilter(session, message);
		} catch (Exception e) {
			try {
				ioHandler.exceptionCaught(session, e);
			} catch (Exception e1) {
				log.warn("execute task happen error!", e1);
			}
		}
	}

}
